18548446753 has 2 divisors, whose sum is σ = 18548446754. Its totient is φ = 18548446752.

The previous prime is 18548446673. The next prime is 18548446789. The reversal of 18548446753 is 35764484581.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15191055504 + 3357391249 = 123252^2 + 57943^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18548446753 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 18548446694 and 18548446703.

It is not a weakly prime, because it can be changed into another prime (18548446793) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9274223376 + 9274223377.

It is an arithmetic number, because the mean of its divisors is an integer number (9274223377).

Almost surely, 2^18548446753 is an apocalyptic number.

It is an amenable number.

18548446753 is a deficient number, since it is larger than the sum of its proper divisors (1).

18548446753 is an equidigital number, since it uses as much as digits as its factorization.

18548446753 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12902400, while the sum is 55.

The spelling of 18548446753 in words is "eighteen billion, five hundred forty-eight million, four hundred forty-six thousand, seven hundred fifty-three".